289855272 has 64 divisors (see below), whose sum is σ = 833028480. Its totient is φ = 82328832.

The previous prime is 289855271. The next prime is 289855309. The reversal of 289855272 is 272558982.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (289855271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24078 + ... + 34050.

It is an arithmetic number, because the mean of its divisors is an integer number (13016070).

Almost surely, 2^289855272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 289855272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (416514240).

289855272 is an abundant number, since it is smaller than the sum of its proper divisors (543173208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

289855272 is a wasteful number, since it uses less digits than its factorization.

289855272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10162 (or 10158 counting only the distinct ones).

The product of its digits is 806400, while the sum is 48.

The square root of 289855272 is about 17025.1364752239. The cubic root of 289855272 is about 661.8004649897.

The spelling of 289855272 in words is "two hundred eighty-nine million, eight hundred fifty-five thousand, two hundred seventy-two".